Bald Eagles in Illinois in December
Yes, December is a good month to see bald eagles in Illinois. It is the 5th busiest month of the year, with 399 of the 4,373 sightings logged across the year (9.1%), based on verified iNaturalist records.
By Tim, founder of Easy Street Markets. I maintain the wildlife database and verify every animal and source myself. Updated June 28, 2026.
Good month for bald eagles in Illinois
9.1%
of yearly sightings
399
records in December
#5
busiest month of 12
4,373
verified records a year
November 7.6%, December 9.1%, January 14.2%. Busiest month is February at 14.5%.
4,373 verified observations of bald eagles in Illinois, recorded across 12 months of the year on iNaturalist.
When bald eagles are recorded in Illinois
Peak month
February
633 records (14.5% of the year)
| Month | Observations | Share |
|---|---|---|
| Januarypeak | 621 | 14.2% |
| Februarypeak | 633 | 14.5% |
| Marchpeak | 589 | 13.5% |
| April | 523 | 12% |
| May | 338 | 7.7% |
| June | 138 | 3.2% |
| July | 131 | 3% |
| August | 158 | 3.6% |
| September | 219 | 5% |
| October | 290 | 6.6% |
| November | 334 | 7.6% |
| December | 399 | 9.1% |
Bald Eagles you are most likely to see
| Species | Verified observations |
|---|---|
| Bald Eagle | 4,373 |
In Illinois, December carries 9.1% of the year's bald eagles sightings, about 0.8 points above an even month-to-month split. That makes it the 5th busiest of the twelve months, out of 12 months with recorded activity.
Activity is rising from November (7.6%) into December, and it heads toward January (14.2%) after. The busiest month is February (14.5%), so if timing is flexible, that window is the safer bet.
The bald eagles most often recorded in Illinois are Bald Eagle. Those counts are annual totals rather than a December split, so treat them as which species you are likely to encounter, while the month figures above show how many sightings fall in December itself.
Which bald eagles you are most likely to see
- Bald Eagle4,373 records
Plan your bald eagle trip in Illinois
Start with live tours near Lewis & Clark National Historic Trail, then compare a nearby stay and a broader wildlife backup before you lock in the trip.
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Use the live GetYourGuide widget to compare local departures and activity styles close to the main bald eagle viewing area.
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Gear to see them
Frequently asked questions
Can you see bald eagles in Illinois in December?+
Yes. December accounts for 399 of the 4,373 verified bald eagles sightings logged in Illinois across the year, which is 9.1% of the annual total.
Is December a good time to see bald eagles in Illinois?+
December is the 5th busiest month. It is workable, though February and January is the stronger window for a reliable sighting.
What month is best for bald eagles in Illinois?+
February is the single busiest month, with the broader peak running through February, January and March, based on 4,373 verified observations.
Which bald eagles are you most likely to see in Illinois?+
The most-recorded species in Illinois are Bald Eagle, based on all-time iNaturalist counts.
See bald eagles in Illinois in other months
More places to see bald eagles
More wildlife in Illinois